Home / 3,719.19-5,128.28-2,372.99

Finding the Fourth Proportional to 3,719.19, 5,128.28 and 2,372.99

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Solution

The fourth proportional to 3,719.19, 5,128.28 and 2,372.99 is: 3,272.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,719.19 : 5,128.28 = 2,372.99 : x
  2. Step 2: Convert to fraction form
    3,719.19/5,128.28 = 2,372.99/x
  3. Step 3: Cross multiply
    3,719.19x = 5,128.28 × 2,372.99
  4. Step 4: Simplify right side
    3,719.19x = 12,169,357.16
  5. Step 5: Solve for x
    x = 12,169,357.16/3,719.19
  6. Step 6: Final answer
    x = 3,272.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.